Agnathan Question

["C. Laibly" <laibly@blue.weeg.uiowa.edu>]

This thread is winding down, so please forgive...

        Following the agnathan threads has made for some good reading.
Something was bothering me through all of the discussions, however. No one
seemed to mention a very important fact...
        The armor only covered the front half of the organisms. Eurypterid
on not, any predator would most often approach/attack from the rear,
either from pursuit or due to the agnaths flight response. The armor
would be useless in this case. If I am not mistaken, this would apply to
most ostracoderms and placoderms, as well.  Wouldn't it?
Responses welcome...

Chad Laibly
B.S. Geology/
Museum Studies
University of Iowa
Undergrad